Alpine Bentgrass

Alpine Bentgrass Plant Information

Alpine Bentgrass grows in the following 11 states:

Alaska, Colorado, Idaho, Montana, New Mexico, Utah, Wyoming, Oregon, California, Nevada, Washington

Agrostis humilis is a species of grass known by the common names of mountain bent grass and alpine bentgrass, which can be found in Western United States and Canada.

The plant perennial and caespitose while it culms are 5-10 centimetres (2.0-3.9in) long. The eciliate membrane have a 0.5-1 millimetre (0.020-0.039in) long ligule which is also both erose and truncate. It have filiformed and flat leaf-blades which are 2-10 centimetres (0.79-3.94in) long and 0.5-1 millimetre (0.020-0.039in) wide. The panicle is inflorescenced and is 1.5-2.5 centimetres (0.59-0.98in) by 0.5 centimetres (0.20in) and is linear with the main branches being appressed. Spikelets are 2 millimetres (0.079in) long and are both elliptic and solitary. They also carry both a pediceled fertile spikelet and one fertile floret which have a hairless callus.
The glumes are 2 millimetres (0.079in) long, lanceolate, membranous and have acute apexes. Fertile lemma is of the same size as glumes and is both elliptic and hyaline. It have hyaline palea which is 0.66-0.75 millimetres (0.026-0.030in) long with rhachilla is extended at 0-0.15 millimetres (0.0000-0.0059in). Flowers are membranous and 0.3 millimetres (0.012in) long with two lodicules. They also have three stamens which are 0.6-0.7 millimetres (0.024-0.028in) long with fruits being caryopses, having an additional pericarp and linear. hilum.
In California, the plant is considered Endangered.

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